They are both genuinely good games that have a lot of longevity. Look at the Beatles (Not video games, but a similar concept) They started in 1957, and people are still listening to them.
Incidentally you proved your own point. It's 28 years old, and they're still getting sequels and reboots left and right.

It's a lot easier for music to stay relevant than a game. We are asking them to know a specific line from a specific game. Also, The Beatles have 10 hours of recorded music. Their are more than 20 games in the Super Mario series.

I expect culture to have changed by then. Have you seen 12 Angry Men? I mean I'm sure you've seen things BASED on it's plot but I doubt you knew what it was based on even though it's the 7th best movie ever according to IMDB.